protected override int InnerParse(ParseArgs args)
{
var scanner = args.Scanner;
var pos = scanner.Position;
if (quoteCharString != null) // AllowQuoted
{
var ch = scanner.ReadChar();
if (ch == -1)
{
return(-1);
}
var quoteIndex = quoteCharString.IndexOf((char)ch);
if (quoteIndex >= 0)
{
var quote = (int)endQuoteCharString[quoteIndex];
beg:
ch = scanner.ReadChar();
if (ch != quote)
{
if (ch == -1)
{
goto end;
}
if (!AllowEscapeCharacters || ch != '\\')
{
goto beg;
}
// found escape character, read it
ch = scanner.ReadChar();
if (ch == -1)
{
goto end;
}
goto beg;
}
// reached quote, check for double quote
if (!AllowDoubleQuote || scanner.Peek() != quote)
{
return(scanner.Position - pos);
}
// double quote found, read it
scanner.ReadChar();
goto beg;
}
end:
scanner.Position = pos;
}
if (!AllowNonQuoted || NonQuotedLetter == null)
{
return(-1);
}
var length = 0;
var m = NonQuotedLetter.Parse(args);
while (m > 0)
{
length += m;
m = NonQuotedLetter.Parse(args);
}
if (length > 0)
{
return(length);
}
return(-1);
}
protected override int InnerParse(ParseArgs args)
{
int length = 1;
var scanner = args.Scanner;
var pos = scanner.Position;
int ch;
if (AllowQuoted)
{
ch = scanner.ReadChar();
if (ch == -1)
{
return(-1);
}
var quoteIndex = quoteCharString.IndexOf((char)ch);
if (quoteIndex >= 0)
{
char quote = endQuoteCharString[quoteIndex];
bool isEscape = false;
ch = scanner.ReadChar();
while (ch != -1)
{
length++;
if (AllowEscapeCharacters && ch == '\\')
{
isEscape = true;
}
else if (!isEscape)
{
if (ch == quote)
{
if (!AllowDoubleQuote || scanner.Peek() != quote)
{
return(length);
}
isEscape = true;
}
}
else
{
isEscape = false;
}
ch = scanner.ReadChar();
}
}
length = 0;
scanner.Position = pos;
}
if (AllowNonQuoted && NonQuotedLetter != null)
{
var m = NonQuotedLetter.Parse(args);
while (m > 0)
{
length += m;
m = NonQuotedLetter.Parse(args);
}
if (length > 0)
{
return(length);
}
}
return(-1);
}